BigPatents India

The present invention relates to a structure comprising, in succession: a metal layer L1, optionally a fluorinated primer L2, which is a blend comprising, by weight, 1 to 100% of at least one modified fluoropolymer per 0 to 99% of fluoropolymer, respectively, and a layer of a fluoropolymer L3; such that, if the primer layer L2 is absent, the fluoropolymer L 3 is a blend comprising, by weight, 1 to 100% of at least one modified fluoropolymer per 0 to 99% of fluoropolymer, respectively; the said modified fluoropolymer being chosen from: fluoropolymers grafted with an unsaturated monomer, the grafting being carried out in the absence of oxygen by irradiation of the unsaturated monomer and of the fluoropolymer that are melt-blended beforehand, and fluoropolymers irradiated in the presence of oxygen (also referred to as oxidized fluoropolymers). According to one particular embodiment, the structure of the invention is an electrode of a lithium-ion battery in which the metal L1 is the collector and the fluoropolymer L3, highly filled with carbon and/or with oxides, is the electroactive layer thereof.